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Conference Proceedings

Fifth International Future Mining Conference 2021

Conference Proceedings

Fifth International Future Mining Conference 2021

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Mine floor material recovery must become part of life-of-mine plan

The use of conventional Load Haul Dump (LHD) equipment and scrapers on uneven floors underground and surface, potentially leaves behind a significant portion of metal. During the approvals and mining process, that portion of gold, metals and precious stones included in Mineral Resource, Ore Reserve estimates and Life-of-mine Plans prior to obtaining governmental approvals and accessing capital funds for their development, continue to be included in various reconciliation factors. Up to 0.5 m of broken ore material is commonly left behind on development mine floors, which could be recovered. When using LHD equipment, due to the ‘milling’ effect, water and gravity, the grade of broken ore left on active mine floors for long periods increase significantly, especially in coarse-gold/nugget-type orebodies. This paper presents a solution to recover lost ore from mine floors via the application of Supersucker technology. The unit enables cost-effective reclamation of unrecoverable broken ore material left behind on mine floors. It potentially allows additional enhancement of return on invested capital and generation of additional revenue. Including generation of additional funds for rehabilitation of waste generated when accessing the ore left behind on mine floors and disposed of on surface. Apart from South Africa and few other countries, broken ore continues to be left underground never to be recovered, potentially wasting billions of dollars globally. Fundamentally, vacuum recovery of broken ore remaining on mine floors has yet to be legislated for, in Australia and in other countries, to become part of the mining cycle prior to mine closure. Mine floor material recovery should become a part of Life-of-mine Plan.
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  • Mine floor material recovery must become part of life-of-mine plan
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  • Published: 2021
  • Pages: 8
  • PDF Size: 1.221 Mb.
  • Unique ID: P-01610-W3G5V4

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